Read The Passage And Answer The Question The Pony Express Marked The Highest Development In Overland Travel Prior To The Coming Of The Pacific Railroad It In Fact Proved The Possibility Of A Transcontinental Road And Demonstrated That Such A Line Could Be Built And Operated Continuously The Year Around This Was A Feat That Had Always Been Regarded As Impossible Which Of The Following Best Paraphrases This Passage In A Feat That Had Always Been Regarded As Impossible The Pony Express Proved The Possibility Of A Transcontinental Railroad And Demonstrated That Such A Line Could Be Built And Operated Year Round The Pony Express Changed The Way The Country Saw Transportation The Pony Express Marked The Highest Development In Overland Travel Prior To The Coming Of The Pacific Railroad It In Fact Proved The Possibility Of A Transcontinental Road And Demonstrated That Such A Line Could Be Built And Operated Continuously The Year Around The Pony Express Was The Most Advanced Form Of Travel Before The Pacific Railroad Arrived Once Thought Impossible It Showed That A Road Connecting The Entire Continent Was Possible And That It Could Be Built And Used All Year Long